P: Enhance Details broken - All-black preview and final render

I had the same issue and manual update did not find the 1809 update. As *cbranco suggested I downloaded and used the Windows Update Assistant and now running ver1809 build 17762.316, which works.

I'll require you do to a manual update. Go under Windows Settings - Update and Security, then select the Retry tab. Should bring up version 1809 if its not already installed. 

Run windows update assistant:
https://support.microsoft.com/en-us/h...

You need WIN 10 build 1809. Look into your systeminformation, which version of WIN 10 you have.

Different Problem. I attempt to use Detail Enhance but Lightroom popup tells me that I have to update windows 10 to a version update of Windows 10 October 18 or beyond. I am up to date to the latest version February 2019.

Brad Vineyard, Did you download and apply the file in the Windows Explorer Folder as instructed?

I downloaded a Fuji X-T2 shot of an ISO Resolution Chart. The RAF raw file and the Enhanced details DNG file at 2:1 Zoom View look virtually identical.

https://www.imaging-resource.com/PRODS/fuji-x-t2/XT2LL002003.RAF.HTM

Next I downloaded the same chart for the Canon EOS M6,which has the same resolution (24Mp) and sensor size (APS-C). The CR2 raw file and the Enhanced details DNG file at 2:1 Zoom View look virtually identical except for one very small vertical barpatch, which looks similar to a screenshot of a Canon 5D MKII CR2 file I posted earlier.These are Bayer sensor color aliasing zebra stripes, which the Fuji X-Trans sensor cameras do NOT exhibit (a plus!).


Keep in mind these are B&W test charts, which won’t reveal fine color-detail improvements in the Enhanced Details DNG file.




 

Here’s a Fuji XT-1 RAF raw file and Enhanced Details DNG. Fine details in the pink flowers and green foliage are noticeably improved. From my testing so far Fuji X-Trans sensor RAF raw files should show improved fine color detail in these types of image areas.

With all other cameras (i.e. Bayer sensor type) the biggest difference you'll probably see in the Enhanced DNG file is removal of color aliasing (i.e. zebra stripes) as above. I'm also seeing very slight improvement in very fine-detail areas, which will only be visible at 2:1 Zoom View or higher dependent on your display's resolution.

 

Any idea for OSX, High Sierra ?

I turned on Graphics processor with OpenGL, installed latest drivers and Windows updates, have tried every combination of Graphics options listed and still black on two different computers

You're right. After following Wes's instructions, I turned on the Graphics Processor, with OpenGL and it's working fine -- and faster.